<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        body {
            text-align: center;
        }
    </style>
</head>
<body th:inline="text">
<form action="/pay">
    <input name="orderId" th:value="${orderId}" hidden>
    <h1>订单<span th:text="${orderId}"></span>待付款...</h1>
    <h2>订单总额:5999</h2>
    <button type="submit">付款</button>
</form>
</body>
</html>